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Old 08-03-2012, 11:45 AM   #1
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spark plug help!!

I just bought a set of autolite ar 3932 plugs for my 92 gt. Can they be used in a daily driver? And if so what gap?
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Old 08-03-2012, 11:49 AM   #2
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Quote:
Originally Posted by stangbanger92
I just bought a set of autolite ar 3932 plugs for my 92 gt. Can they be used in a daily driver? And if so what gap?
Personally I use autolite 25's gapped at .54 I think..
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Old 08-03-2012, 11:51 AM   #3
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But will it tear anything up if i use them?
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Old 08-03-2012, 11:52 AM   #4
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Honestly have no idea.. Been using 25's for more then 10 years.. Sorry I can't be more help.
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Old 08-03-2012, 12:26 PM   #5
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Re: spark plug help!!

Just check them against what you are using or are supposed to use. If the depth and heat range are the same, then they will work.
Most plug sites have crossover charts and heat range information.
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Old 08-03-2012, 09:46 PM   #6
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Re: spark plug help!!

I think you have the wrong plugs, your car should take a ar25. Like Trojan said check them next to the plugs you take out. The ar3932 looks like it has a gasket seat and you car should have a tapered seat.
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Old 08-03-2012, 10:23 PM   #7
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Re: spark plug help!!

Quote:
Originally Posted by 5.8GT View Post
I think you have the wrong plugs, your car should take a ar25. Like Trojan said check them next to the plugs you take out. The ar3932 looks like it has a gasket seat and you car should have a tapered seat.
Good point. I never looked them up.


The 95 I owned previously had exactly that issue when I first got it.
They used the gasketed plugs on heads that were machined for tapered seats.
It ran a good bit better with the proper plugs.
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